Exploració per tema "Compostos polimèrics"
Ara es mostren els items 21-38 de 38
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Mercerização/branqueamento de fibras naturais nativas: análise térmica
(2017)
Comunicació de congrés
Accés obertO crescente consumo de materiais poliméricos originários de fontes não renováveis (base petroquímica), apresentam baixo potencial de biodegradabilidade, e podem demorar desde décadas, até séculos, para se decompor por meio ... -
Microcellular PP/GF composites: morphological, mechanical and fracture characterization
(2018-01-01)
Article
Accés obertThe aim of the present work is to analyze the morphology, mechanical properties and fracture behaviour of solid and foamed plates made of glass fiber-reinforced PP. The morphology exhibited a solid skin/foamed core structure, ... -
Microplane model of cylindrical geometry for transversely isotropic polymer composites
(Elsevier, 2022-08)
Article
Accés restringit per política de l'editorialIn this paper, a microplane model based on cylindrical geometry where the cylinder axis coincides with the longitudinal direction is developed for a general 3D inelastic fracturing analysis by finite element method of ... -
Modified digital image correlation aided measurement of the transverse to longitudinal deformation ratio for polymeric macro-fibres
(Elsevier, 2022-11)
Article
Accés obertConsidering the increasing interest of polymeric macro-fibres reinforced concrete, a simple and straightforward method to assess the fibre’s transverse to longitudinal deformation ratio (¿f) becomes a determining aspect ... -
Nafion nanocomposites: does the polymeric structure drive the features of nanoparticles or vice versa ?
(Nova Science Publishers, Inc., 2016)
Capítol de llibre
Accés restringit per política de l'editorialNafion is the first and the most well-known and commonly used ionomer membrane, applied nowadays in a broad variety of applications. This wide suitableness comes up in last instance from its chemical structure: a hydrophobic ... -
New BN-epoxy composites obtained by thermal latent cationic curing with enhanced thermal conductivity
(2017-12-01)
Article
Accés obertA series of boron nitride (BN) composites, with different BN content, were prepared and characterized by cationic curing of DGEBA/BN formulations. As cationic initiator a commercial benzylanilinium salt was used. This ... -
Punzonamiento de losas armadas con barras de polímeros reforzados con fibras
(Universitat Politècnica de Catalunya, 2016-09-23)
Treball Final de Grau
Accés restringit per decisió de l'autorLa vida útil de las estructuras de hormigón armado se ve fuertemente limitada por la corrosión del acero que produce una degradación de las mismas con una posible disminución de la capacidad portante que puede conducir ... -
Recent progress of DOPO-containing compounds as flame retardants for versatile polymeric materials: review
(2020-12-09)
Article
Accés obertWith the increasing awareness of environmental protection, the development and application of novel halogen-free flame retardants have attracted a lot of attention recently. 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10- ... -
Recent trends in polymeric foams and porous structures for electromagnetic interference shielding applications
(Multidisciplinary Digital Publishing Institute (MDPI), 2024-01-09)
Article
Accés obertPolymer-based (nano)composite foams containing conductive (nano)fillers limit electromagnetic interference (EMI) pollution, and have been shown to act as good shielding materials in electronic devices. However, due to their ... -
Refuerzo a cortante con laminados FRP. Estudio del desprendimiento prematuro del refuerzo
(Universitat Politècnica de Catalunya, 2016-07)
Tesina
Accés obert -
Refuerzo a cortante de estructuras de hormigón armado con laminados de polímeros reforzados con fibras (FRP) : verificación experimental.
(Universitat Politècnica de Catalunya, 2018-06-26)
Tesi
Accés obertThe use of externally bonded fibre reinforced polymers, FRP, for strengthening reinforced concrete (RC) beams or columns is an alternative to other traditional strengthening techniques due to its high strength-to-weight ... -
Repair of bridges using Fiber Reinforcement Polymers (FRP)
(Universitat Politècnica de Catalunya, 2014-06-15)
Tesina
Accés obert -
Solvent-cast direct-writing and electrospinning as a dual fabrication strategy for drug-eluting polymeric bioresorbable stents
(Elsevier, 2023-06-05)
Article
Accés obert
Realitzat a/amb: Institut de Recerca Sant Joan de Déu / Universitat de Girona / Institut de Bioenginyeria de CatalunyaBioresorbable stents (BRS) are conceived to retain sufficient radial strength after implantation while releasing an antiproliferative drug in order to prevent vessel restenosis until complete resorption. Ongoing research ... -
Synthesis and evaluation of a PVDF-PT3MA-Zn2SiO4:Mn hybrid polymeric composite for optical device applications
(Royal Society of Chemistry, 2014-01-01)
Article
Accés obertA new hybrid organic/inorganic composite consisting of poly(3-thiophene methyl acetate) (PT3MA), poly(vinylidene fluoride) (PVDF) and manganese-doped zinc silicate (Zn2SiO4:Mn) has been synthesized and applied for the ... -
The cylindrical microplane model for transversely isotropic fiber reinforced polymer composites
(Universitat Politècnica de Catalunya, 2024-02-15)
Projecte Final de Màster Oficial
Accés obertEn aquest estudi, es pretén estudiar un model de micropla per a materials compostos polimèrics reforçats amb fibres transversalment isotròpics basat en geometria cilíndrica, on l'eix del cilindre coincideix amb la direcció ... -
The effect of brazilian organic-modified montmorillonites on the thermal stability and fire performance of organoclay-filled PLA nanocomposites
(2020-06-07)
Article
Accés obertTo investigate the influence of chemical compositions of organoclays on the thermal stability and fire behavior of PLA nanocomposites, 2, 6 and 8 wt% of single and hybrid Brazilian organically-modified montmorillonites ... -
The use of lanthanide triflates in the preparation of poly(thiourethane) covalent adaptable networks
(Elsevier, 2023-09-22)
Article
Accés obertCovalent adaptable networks (CANs) are new polymeric materials with the mechanical properties of thermosets and the possibility of being recycled like thermoplastics. Poly(thiourethane) networks have demonstrated vitrimeric-like ... -
Void content minimization in vacuum infusion (VI) via effective degassing
(Multidisciplinary Digital Publishing Institute (MDPI), 2021-08-27)
Article
Accés obertThis paper addresses the major concern which component porosity represents in Vacuum Infusion (VI) manufacturing due to resin gelation at pressures close to absolute vacuum. Degassing is a fundamental step to minimize or ...